GB1410199A - Switch control circuit - Google Patents

Switch control circuit

Info

Publication number
GB1410199A
GB1410199A GB5916672A GB5916672A GB1410199A GB 1410199 A GB1410199 A GB 1410199A GB 5916672 A GB5916672 A GB 5916672A GB 5916672 A GB5916672 A GB 5916672A GB 1410199 A GB1410199 A GB 1410199A
Authority
GB
United Kingdom
Prior art keywords
signal
pulses
circuit
generator
sawtooth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5916672A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CII HONEYWELL BULL
Original Assignee
CII HONEYWELL BULL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CII HONEYWELL BULL filed Critical CII HONEYWELL BULL
Publication of GB1410199A publication Critical patent/GB1410199A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
    • H02M3/3376—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current
    • H02M3/3378—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current in a push-pull configuration of the parallel type
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/83—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices with more than two PN junctions or with more than three electrodes or more than one electrode connected to the same conductivity region
    • H03K4/835—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices with more than two PN junctions or with more than three electrodes or more than one electrode connected to the same conductivity region using pulse-modulation techniques for the generation of the sawtooth wave, e.g. class D, switched mode

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

1410199 Automatic voltage control COMPAGNIE HONEYWELL BULL 21 Dec 1972 [28 Dec 1971] 59166/72 Heading G3R A chopper arrangement for a power supply circuit includes a sawtooth generator and two comparator circuits which receive the sawtooth signal, a reference signal, and a feedback signal and produce output pulses of variable duration which are supplied to AND gates together with signals from a bi-stable device to form control signals for a pair of switches in the supply. In Fig.1, A.C. supply terminals 1 are connected through chopper elements 10, 11, which may be transistors, to a transformer 2, the output of which is rectified and filtered. The output voltage is sensed at a terminal 7 and fed back to a differential amplifier 12 where it is compared with a reference signal r to produce an error signal e. A second comparator circuit 13 receives as inputs the error signal and a sawtooth signal S from a generator 14, and supplies variable width pulses to control the elements 10, 11. Pulses from a bi-stable circuit 15, derived from the generator 14, set AND gates 16, 17 so that the pulses from circuit 13 are fed to the appropriate chopper element. The sawtooth generator 14 may include a uni-junction transistor and a capacitor which supply synchronized signals to the comparator 13 and bi-stable circuit 15, Figs. 2, 3 (not shown).
GB5916672A 1971-12-28 1972-12-21 Switch control circuit Expired GB1410199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7147028A FR2166513A5 (en) 1971-12-28 1971-12-28

Publications (1)

Publication Number Publication Date
GB1410199A true GB1410199A (en) 1975-10-15

Family

ID=9088235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5916672A Expired GB1410199A (en) 1971-12-28 1972-12-21 Switch control circuit

Country Status (7)

Country Link
JP (1) JPS4877323A (en)
BE (1) BE793022A (en)
DE (1) DE2263868A1 (en)
FR (1) FR2166513A5 (en)
GB (1) GB1410199A (en)
IT (1) IT972755B (en)
NL (1) NL7216505A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52142556A (en) * 1976-05-21 1977-11-28 Seiko Instr & Electronics Ltd Frequency-voltage converting apparatus
JPS58163269A (en) * 1982-03-19 1983-09-28 Nippon Telegr & Teleph Corp <Ntt> Switching regulator

Also Published As

Publication number Publication date
IT972755B (en) 1974-05-31
FR2166513A5 (en) 1973-08-17
JPS4877323A (en) 1973-10-17
NL7216505A (en) 1973-07-02
DE2263868A1 (en) 1973-07-05
BE793022A (en) 1973-04-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee